CN1565108A - Subscriber device for a high-performance communication system - Google Patents
Subscriber device for a high-performance communication system Download PDFInfo
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- CN1565108A CN1565108A CNA028196341A CN02819634A CN1565108A CN 1565108 A CN1565108 A CN 1565108A CN A028196341 A CNA028196341 A CN A028196341A CN 02819634 A CN02819634 A CN 02819634A CN 1565108 A CN1565108 A CN 1565108A
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- check data
- datagram
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
- H04L2012/6445—Admission control
- H04L2012/6448—Medium Access Control [MAC]
- H04L2012/6454—Random, e.g. Ethernet
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
- H04L2012/6445—Admission control
- H04L2012/6462—Movable boundaries in packets or frames
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
- Exchange Systems With Centralized Control (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
A subscriber in a communication system (102) for transmitting and receiving data telegrams, wherein a data telegram includes reference data or user data and an identifier. The control of transmitting and receiving data telegrams is based on check data sets (122). A check data set includes an address for the reference data or user data and the identifier of the data telegram, which is assigned to the check data set. A transmission list (120) includes a first number of check data sets. A circuit unit (128) generates, based on a check data set of the transmission list, a data telegram to be transmitted. In addition, a second number (136, 138) of check data sets is provided. An assignment unit (140, 144) assigns a received data telegram to one of the check data sets of the second number of check data sets, wherein the assignment is carried out based on the identifier for the received data telegram.
Description
Technical field
The present invention relates in a kind of communication system, the subscriber equipment of the telegram that is used in especially a kind of Ethernet and/or the real-time ethernet communication system to transmit and receive data, and a kind of communication system and a kind of communication means.
Background technology
Have characteristic uniformly-spaced synchronously, regularly communication system is understood that a system that is made up of at least two subscriber equipmenies, these subscriber equipmenies interconnect to realize mutual swap data or mutual data transmission by a data network.At this, exchanges data periodically by by the employed communication clock of this system predetermined, equally spaced communication cycle carries out.
The periodic data exchange of uniformly-spaced determining in communication system all has common cycle or time reference based on the parts that all participate in communication.This cycle or time reference are sent to other parts by sign property parts (cycle hammer).In the real-time ethernet when waiting, this cycle or time reference are preestablished by sending syncbronous telegraphy by a master synchronization.
Subscriber equipment for example is central automation equipment, programming, planning or operating equipment, ancillary equipment (for example I/O parts, transmission device, actuator, transducer), program storage controller (SPS) or other control unit, computer is perhaps with other machines exchange electronic data, especially handle the machine of other machines data.Subscriber equipment is also referred to as network node or node.
Below control unit is interpreted as various types of adjustings or control unit, and for example switch and/or on-off controller.For example can adopt bus system as data network, as fieldbus (Feldbus), Process FieldbusROFIBUS (Profibus), Ethernet, Industrial Ethernet network, live line (FireWire) or PC internal bus system (PCI), especially also has (isochrones) real-time ethernet network such as when grade.
Data network can be by the communication between a plurality of subscriber equipmenies of networking (being that each subscriber equipment interconnects) realization.Tong Xin implication is meant and transmits data between the subscriber equipment herein.At this, data waiting for transmission send as datagram, and promptly data are together packed by a plurality of groupings and delivered to corresponding receiver with this form by data network.Therefore be also referred to as packet.The transmission synonym of complete and above-mentioned datagram of the notion of the transfer of data of in presents, using here, or packet.
In distributed automatic system,, must make established data arrive the subscriber equipment of determining, and handle by receiver in the time of determining for example in the drive technology field.Here be called real-time key (echtzeitkritisch) data or exchanges data, because opposite with the data communication of the non real-time key data communication of internet or intranet (for example based on), the place that the untimely arrival of data is determined can cause producing at subscriber equipment the consequence of non-expectation there.According to IEC 61491, EN61491 SERCOS interfacing brief description (http://www.sercos.de/deutsch/index deutsch.htm) can guarantee successfully to finish the exchange of the real-time critical data of described type in distributed automatic system.
Nowadays, automation component (for example controller, driving ...) generally have and be used for the periodically regularly interface of communication system.An operation aspect (fast period) of these automation components (for example torque adjustment of the position adjustments in a controller, driving) is synchronous with this communication cycle.Determined communication clock thus.Algorithm (slow cycle) (for example adjustment) for other low performances of automation component, although a kind of slower cycle meets the demands, equally can only by this communication clock and other parts (for example, for the logic switch of ventilation blower, pump ...) communication.Because only use a kind of communication clock to come all information in the transmission system, this has just proposed high requirement to the bandwidth of span line.
For in automatic production line and particularly process control in digital drive technology and supervision, but require extremely fast and reliably and have the communication system of anticipation reaction time.
But disclose the system and method that a kind of data network, especially Ethernet that is used for by switch transmits data in German patent application DE 100 58 524.8, this network allows to carry out the data communication of real-time critical data communication and non real-time key, especially based on the mixed running of the data communication of internet or intranet.But this just can be by not only having carried out real-time important traffic (RT:Real-Time), but also carried out communicate by letter (NRT:Non-Real-Time) of non real-time key by a kind of periodic operation in the subscriber equipment of a for example distributed automatic system and the switch data network that coupling unit constitutes.
But exist at least one zone that is used to transmit real-time critical data and at least one to be used to transmit the zone of the data of non real-time key at a so-called transmission cycle respectively to all subscriber equipmenies of this switch data network and coupling unit, so just real-time important traffic is separated with communicating by letter of non real-time key.Because all subscriber equipmenies and coupling unit are to be undertaken synchronously by a common time reference always, occur in same time point respectively so be used to transmit each zone of data for all subscriber equipmenies and coupling unit, that is to say, the carrying out of important traffic is independent of the communication of non real-time key in time in real time, thereby not influenced by the latter.Plan has been done in crucial in real time communication in advance.Original sender provides the transmission of datagram and datagram to be undertaken by the time by means of the coupling unit that participates in.Realize that by the interim storage in each coupling unit communication that will occur at any time, at random, the non real-time key moves to the transmission region of the transmission cycle that keeps into non-realtime traffic, and only transmit at that time.
In the application of being mentioned, exemplarily the principle of the transmission cycle that is divided into two zones is constituted and be illustrated.First area and a second area that transmits the data of non real-time key of a transmission cycle being divided into a real-time critical data of transmission.The length of represented transmission cycle has characterized its temporal length, its according to different application between several microseconds between several seconds.
The time span of transmission cycle can change, but is determined once at least by a for example control computer constantly in this transfer of data, but and for all subscriber equipmenies of switch data network and coupling unit each equal in length.The time span that the time span of transmission cycle and/or be used for is transmitted the first area of real-time critical data can change at any time, for example at the set time point that plans sth. ahead and/or after several transmission cycles of being planned, preferably changed before a transmission cycle that will be transformed into the real-time critical transmissions cycle of other plan therebetween begins.
In addition, the control computer can be realized the new plan of real time communication at any time as requested in the automated system of continuous service, can change the time span of transmission cycle thus equally.The absolute time length of transmission cycle is a kind of shared time share of communication of non real-time key or measuring of bandwidth in cycle time, and the time as the communication of this non real-time key promptly is provided.For example, be that the time span of 350 μ s and a transmission cycle is under the condition of 500 μ s in the real-time time span of important traffic, the communication of non real-time key has one 30% bandwidth, and bandwidth is 97% under 10ms.
In the first area that is used for transmitting real-time critical data, before the datagram of the real-time key of transmission itself, kept regular hour length and sent the datagram that is used to organize transfer of data.The data that this is used to organize the datagram of transfer of data for example to comprise to be used to the coupling unit that makes subscriber equipment and data network to carry out the data of time synchronized and/or be used for the recognition network topological structure.
After this datagram sends, send real-time critical data telegram.Because the real time communication of periodic duty can pre-incident plan, then for all real-time critical data telegrams waiting for transmission, its transmitting time point or the time point that transmits these real-time critical data telegrams were known before the beginning transfer of data, that is to say, be used to transmit the non real-time key data the zone time span automatically the time span in the zone by being used to transmit real-time critical data determine.
The advantage of An Paiing is like this, only use at every turn real-time critical data is exchanged the necessary transmission time, and after it finishes, will automatically offer the non real-time important traffic remaining time, for example offer the Internet traffic that can not plan or the application of other non real-time key.Particularly advantageously be, the time span that is used to transmit the zone of real-time critical data is determined by the data to be transmitted that special use connects respectively, promptly the time span in two zones is determined by the data volume of required separately real-time critical data to be transmitted concerning each data connects, so, for each transmission cycle, can be different for each individual data connects two zones that are divided into.
Only use at every turn real-time critical data is exchanged the necessary transmission time, and but the subscriber equipment that automatically offers all switch data networks the remaining time of transmission cycle carries out the communication of non real-time key, for example is used for the Internet traffic that can not plan or the application of other non real-time key.
Because real time communication is so correspondingly being planned in advance, promptly plan real-time critical data telegram like this and arrive corresponding coupling unit, make the real-time critical data telegram relate to the latest the time point that transmits or before be sent to corresponding coupling unit, then should not send or transmit by crucial in real time datagram with having the time interval, thereby send or transmit and utilized the time span that use is provided best by intensive grouping.Can certainly between each packet of transmission, set up one to send time-out when needed.
Below, connecting the subscriber equipmenies connect each other (for example a driver and a control computer, they have the subscriber equipment that integrated coupling unit and another one do not have coupling unit respectively) by data to each other with two exemplarily describes the principle working method in the access network as the representative of an arbitrary network.
Each coupling unit has the local storage that is connected with subscriber equipment by internal interface separately.This subscriber equipment is by interface and corresponding coupling unit swap data.Local storage connects by data in the inside of coupling unit and links to each other with controller.Controller connects reception by internal data again and sends local storage to from the data of local storage or with data, perhaps receives data or transmits data by one or more outside ports.This coupling unit has common benchmark lock in time all the time by the method that adopts time synchronized.If subscriber equipment has real-time critical data, then the predetermined point of time of corresponding memory during the zone of this real-time important traffic extracted these data by corresponding interface and local storage, and sends to the coupling unit that the next one is connected by the outside port of stipulating therefrom.
If another subscriber equipment at the same time, promptly sends the data of non real-time key during real-time important traffic, for example internet inquiry, then these data are received by outside port by controller, and are sent to local storage by the inside connection, and storage temporarily there.During the zone of non real-time important traffic, just extract these data more therefrom, and send these data to recipient, and be about to these data and move in the second area this transmission cycle, that keep at random non-realtime traffic, so got rid of interference to real time communication.
In the zone for transmission non real-time critical data of this transmission cycle, fail situation about all being transmitted for the non real-time critical data of interim storage, these data that are not transmitted will be stored in the local storage of coupling unit always temporarily, till they can be transmitted, so under any circumstance got rid of interference to real time communication in after a while the zone of transmission non real-time critical data of transmission cycle.
Those connect the real-time critical data telegram that appears at the controller of coupling unit by outside port through corresponding data, directly by corresponding outside port transmission.This is possible, because real time communication is planned in advance, therefore for all real-time critical data telegrams waiting for transmission, send and time of reception point, coupling unit that all participate in separately and the time point of all transmission and the receiver of all these real-time critical data telegrams all are known.
Guaranteed also that by the real time communication plan of finishing in advance data data collision can not occur on connecting.From the coupling unit that participates in separately all in real time the passing time point of crucial packet planning in advance equally, thereby be clearly definite.Therefore the arrival of crucial datagram in real time be plan like this, promptly this real-time critical data telegram that relates to the latest the time point that transmits or before arrive the controller of corresponding coupling unit.So, got rid of the time ambiguity problem that especially is worth arousing attention in longer transmission chain situation.Therefore, as described above, but can in the data network of same switch, move real-time important traffic and non real-time important traffic simultaneously, but and additional user devices at random can be connected on the data network of this switch, and real time communication itself produce is not disturbed.
Utilize the method for describing among the German patent application DE 100 58 524.8, can set up communication network based on Ethernet, the communication network of real-time ethernet network during particularly based on grade, its subscriber equipment should be used for using by extremely high frequency swap data group with for this.At this, can on application interface, obtain to catch up with the handling capacity (Durchsatz) of connecting the maximum possible telegram arrival amount (Telegrammauf-kommen) that connects by hardware supports.For example 4 100Mbit full duplexs of being connected connect and the condition of the frame of 64 byte longs under, be about for 1000000 telegram/seconds.In contrast, the application interface based on software/communication stack then will hang down at least two orders of magnitude to the handling capacity of Random Communication.
Yet this high percent of pass only just can obtain for those cycle communications when reception one side has also accurately guaranteed waiting of the prior reception of a telegram moment of planning.This means, the transmission of this telegram based on a kind of in German patent application DE 100 58 524.8, describe on time between the network of connection mode (Durchschaltung) be prerequisite.But the most worth expectation is a kind of high-performance user equipment interface that can work together with network existing, that connect by the address.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of improved, subscriber equipment of being used for communication system, and this subscriber equipment can reach extra high data transfer rate.In addition, the technical problem to be solved in the present invention also provides a kind of corresponding communication system and a kind of communication means.
Above-mentioned technical problem of the present invention is to solve by the technical characterictic of corresponding independent claims respectively.Preferred implementation of the present invention provides in the dependent claims.
The present invention allows to realize a kind of high performance communication system, and it has the telegram rate of for example using real time communication in automated system that can make.Here, particularly advantageous is to adopt for example communications systems standard of Ethernet to this.Be equipped with one or more and had the subscriber equipment of interface of the present invention for carrying out high performance communication.At this, do not require that all subscriber equipmenies of this communication system have a kind of like this interface.This has special advantage: can continue to use the subscriber equipment that has existed.
According to of the present invention one preferred embodiment, the high performance communication interface of at least one subscriber equipment has a transmission inventory that comprises the check data group in this communication system.Each check data group includes the control information to a telegram and valid data explanations (address, length).Control information especially comprises a sign (frame ID) of this telegram to be sent.This address has for example provided the storage area of the valid data to be sent that will call from the communication memory of subscriber equipment.Preferred this transmission inventory periodically carries out reprocessing by subscriber equipment.
Here particularly advantageous is can serve as directly data telegram of (" on thefly " at any time promptly) generation of basis with a check data group, because the check data group has comprised the needed information of the promising generation datagram of institute.Preferably except the sign of datagram, also has other header.
According to a kind of preferred implementation of the present invention, the check data group is input to a logical circuit, thereby this logical circuit reads valid data to be sent by means of this address, and these valid data and sign and other header are combined into a datagram.
Here particularly advantageous is can transmit the complete data set of datagram after activating the transmission inventory, and be carried out with very high data transfer rate by this logical circuit based on check data group and hardware supports.
Correspondingly, also can finish the reception of datagram by a high data transfer rate.This just can preferably leave the check data group at least one subscriber equipment in.Sign according to received datagram disposes this datagram the check data group that provides the valid data address accordingly to.Valid data can be stored on this address then, for example on the address in this communications of user equipment memory.
According to another kind of preferred implementation of the present invention, this transmission inventory has the control data group that is used for determining sending inventory check data group processing sequence.Preferably in this transmission inventory, be provided with one or more control data group.These control data groups play the function of redirect of having ready conditions in sending inventory, so that determine the check data group in this transmission inventory is handled.
According to another preferred implementation of the present invention, the cycle that the transmission inventory is handled counts, and based on this condition that sends redirect in the inventory is verified.Based on this, for example can only carry out redirect in each n cycle, wherein can carry out mark by binary system bit position and select n all issues.
According to another preferred implementation of the present invention, the check data group that will be used to receive is stored with packet mode.When receipt of data messages, at first set up one and be used for index that addressing is carried out in the grouping of the check data group that is applicable to this receipt of data messages.This index is preferably set up with the basis that is designated of datagram.
Description of drawings
Below in conjunction with accompanying drawing preferred implementation of the present invention is described:
Fig. 1 is the block diagram of the execution mode of the subscriber equipment of the present invention in a communication system,
Fig. 2 shows a transmission inventory of this subscriber equipment,
Fig. 3 shows a logical circuit that is used to produce datagram to be sent of this subscriber equipment,
Fig. 4 shows a block diagram that is used for checking the circuit that sends inventory redirect condition,
Fig. 5 shows a datagram that is used for receiving and gives the block diagram of a control data group by an index assignment.
Embodiment
Fig. 1 shows a subscriber equipment 100 in the communication system 102, and this system also is connected with other subscriber equipment 104,106,108....This communication system 102 for example is the Ethernet of a standard.
Subscriber equipment 100 comprises the application program 110 that can visit the memory 112 of this subscriber equipment 100.This memory 112 can be a so-called communication memory.
In addition, subscriber equipment 100 includes a sending module 114 and a receiver module 116.This sending module 114 and receiver module 116 are to constitute like this, promptly, the transmission of datagram realizes by communication system 102 by subscriber equipment 100, and the reception of datagram according to one mostly just in the real time communication of a plan accessible data transfer rate finish.
Subscriber equipment 100 for example can be a control unit in automated system.Subscriber equipment 104,106,108... can be other control units, other parts in so-called intelligent drives, actuator, transducer or the automatic technology.The real-time control of this automated system or adjusting have proposed the requirement of High Data Rate to the communication between the subscriber equipment.
For example, subscriber equipment 104,106,108... can be transducers, for example send the transducer of datagrams to subscriber equipment 100 with time interval of a microsecond.Subscriber equipment 100 must can also receive corresponding datagram, and valid data are left in the memory 112.Correspondingly, this subscriber equipment 100 also must carry out addressing by corresponding bandwidth to subscriber equipment 104,106,108..., and is especially all the more so when subscriber equipment 104,106,108... utilize different servo-drive to move control simultaneously.
Particularly advantageous is the subscriber equipment that only disposes the Ethernet interface of standard can be connected on the communication system 102.Another advantage is that the subscriber equipment that is connected on this communication system 102 is not prerequisite with this subscriber equipment or switch with a connection performance that is independent of the arrival (Verkehrsaufkommen) of communicating by letter in time synchronously.This for example also can be connected to a kind of subscriber equipment 100 of the present invention the expansion that realizes the data handling capacity on the existing standard ethernet.
Fig. 2 shows a kind of execution mode of the sending module 114 of Fig. 1.This sending module 114 has one and is used for entering the hardware register 118 that the address is stored a transmission inventory 120 beginning parts into one.This transmission inventory 120 is made of check data group 122, and this check data group is also referred to as application of frame control word (ACW).This check data group 122 comprises at least one address and a sign.Give a datagram by this sign with this check data set of dispense with same sign.Address in this check data group 122 has provided the memory address of these datagram valid data.In addition, this check data group 122 can comprise other header of this datagram.
Generated a transmission inventory 120 by check data group 122 is arranged in order, clearly be assigned to a datagram to be sent because send each check data group 122 of inventory 120.This transmission inventory 120 is begun to handle in proper order by the first check data group of subscriber equipment 100 (referring to Fig. 1) from this inventory.All turning back to the beginning that sends inventory 120 again after the processing to sending inventory 120, so that handle again to sending inventory 120.This process periodically repeats.
Except check data group 122, in sending inventory 120, preferably include control data group 124, it is also referred to as fragment ending (EOS).Control data group comprises a jump address that jumps to another control data group 124 in this transmission inventory 120 or transfer to a check data group 122 in this transmission inventory 120.Only in this control data group 124, during defined terms, just carry out the redirect of this jump address equally having satisfied this.Can work out transmission inventory 120 like this by means of control data group 124, make different check data groups 120 handle, thereby can produce datagram according to different signs and different repetition rates by different frequency.If not all subscriber equipment in communication system 102 (referring to Fig. 1) all needs same high data transfer rate or handles according to same high data transfer rate, then this is particularly advantageous.
How Fig. 3 has illustrated that logical circuit 128 by sending module 114 produces datagram to be sent 126.To send that current pending check data group 122 is transported in this logical circuit 128 in the inventory 120 (referring to Fig. 2).This logical circuit 128 is visited the memory 112 of this subscriber equipment 100 (referring to Fig. 1) according to the address that comprises in the check data group 122, so that read corresponding valid data from this memory 112.
These valid data are comprehensively become datagram 126 together with being included in sign in the check data group 122 and other possible header, and this datagram can be sent by subscriber equipment 100 then.Here particularly advantageously be, this sign and other possible header " are at any time (on the fly) " and join state in the valid data to be sent by logical circuit 128, thus the replication actions can avoid special charges the time.
Fig. 4 shows the execution mode of a control data group 124 (referring to Fig. 2) and its processing.Control data group 124 comprises a jump address and a mask (Maske).Sending module 114 (referring to Fig. 1) includes one-period counter 130, is used for paired domination number and carries out evaluation according to group 124.
For example, mask is " 00000111 ", promptly only three lowest orders of this cycle rate counter is used for evaluation.The mode of current state step-by-step in door 132 of each of mask and cycle rate counter 130 is carried out a disjunction operation.Then, an exclusive disjunction is carried out in each output of door 132 in door 134.As long as when having a position to be logical one in last three of the current period of cycle rate counter 130, the output of door 134 is exactly logical one.Door 134 output only just obtains the logical zero value during for " 000 " at last three of this cycle.Only be only this situation in each the 8th cycle.
If door 134 output is logical one, promptly under last three all situations that are in " 000 " state except cycle rate counter 130, just finish the redirect that the jump address that provides in the control data group 124 is changed.The check data group of jumping in this manner 122 is only handled in each the 8th cycle, thereby corresponding data sets sends with the frequency of corresponding reduction.Have only those check data groups of in sending inventory 120, not jumped over 122, just handle by the complete repetition rate in cycle.
Fig. 5 shows a kind of execution mode of the receiver module 116 of Fig. 1.This receiver module 116 have an index 140 and check data group 122 grouping 136,138 ....These check data groups similarly constitute with the check data group (referring to Fig. 2) that sends inventory 120 in principle.Each check data group 122 has a sign that is used to distribute to the datagram of relevant check data group 122.This sign is also referred to as " frame ID (Frame-ID) ".This sign can be omnidistance single.As a kind of replacement, except this sign, also must analyze the destination address that is called MAC-SA.
The grouping of check data group 122 identified according to this finish.If this sign for example has 8 length, then adopt this sign for example last three constitute divide into groups 136,138 ..., wherein, corresponding to 23 such groupings of possibility formation of 23 kinds of combinations of last three distribution.
For example, grouping 136 includes those check data groups 122 that has the sign that ends up with " 000 ".Grouping 138 includes those check data groups 122 that has the sign that ends up with " 001 ", by that analogy.Here the applicable cases of being considered has constituted the grouping of eight such check data groups 122.
Enter the grouping 136,138 ... jump address be stored in the index 140.
If datagram 142 is received by subscriber equipment 100 (referring to Fig. 1), then in receiver module 116, call index 140, and be clue with last three of datagram 142 signs.If last three of sign for example is " 000 " in datagram 142, then index 140 sensing groups 136.
Then, the check data group 122 that has with datagram 142 same signs is sought in search grouping 136.This can finish by means of a comparator 144.If this sign is not omnidistance consistent sign, then also must check the consistency of MAC-SA.
Here particularly advantageously be, grouping based on check data group 122 just needn't be carried out the consistent check that identifies to all check data groups 122 that is present in this receiver module 116, and only that is tested according to the specified grouping that comprises this check data group of definite distribution of last three positions of sign in the datagram 142 by index 140.Can especially promptly search out the check data group 122 of distributing to this datagram 142 in such a manner.
Determined in such a manner to distribute to after the check data group 122 of this datagram 142, the valid data that this datagram 142 is comprised leave in the storage address that provides in this check data group 122.
Claims (22)
1. the subscriber equipment of telegram is used in the communication system (102) to transmit and receive data, wherein, datagram has valid data and a sign, control to data telegram transmission and reception serves as that carry out on the basis with check data group (122), and the check data group has the address of valid data and attach troops to a unit in the sign of the datagram of this check data group, and this subscriber equipment comprises:
-one transmission inventory (120) that includes first's check data group,
-be used for producing the logical circuit (128) of a datagram to be sent according to check data group of described transmission inventory,
-second portion check data group (136,138),
-the datagram that is used for receiving is assigned to the device (140,144) of a check data group of second portion check data group, and wherein this distribution is to carry out according to the sign of received datagram.
2. according to the described subscriber equipment of claim 1, wherein, described communication system is the communication system of an ethernet type or real-time ethernet type.
3. according to claim 1 or 2 described subscriber equipmenies, wherein, described transmission inventory is handled in one-period.
4. according to claim 1,2 or 3 described subscriber equipmenies, wherein, described transmission inventory has one or more control data groups (124) that are used for the processing sequence of definite first check data group.
5. according to the described subscriber equipment of claim 4, wherein, described control data group includes a condition jump address of pointing to a check data group in first's check data group.
6. according to the described subscriber equipment of claim 5, wherein, described subscriber equipment has one-period counter (130), and described control data group constitutes like this, makes to finish redirect to described jump address in each n cycle.
7. according to the described subscriber equipment of claim 6, wherein, described control data group constitutes like this, make described n the cycle can by to this in week issue the binary system bit position carry out mark and select.
8. according to each described subscriber equipment in the claim 1 to 7, wherein, check data group in the described second portion check data group is stored with packet mode, and finish visit to a check data group by an index (140), wherein, the grouping of described check data group is determined according to the sign of received data telegram.
9. subscriber equipment (100 with a plurality of telegrams that are used to transmit and receive data, 104,106,108) communication system, wherein, datagram has valid data and a sign, is that carry out on the basis for the control of the telegram that transmitted and receive data by one of these subscriber equipmenies at least with the check data group, and the check data group has the address of valid data and attach troops to a unit in the sign of the datagram of this check data group, and described at least one subscriber equipment comprises:
-one transmission inventory (120) that includes first's check data group,
-be used for producing the logical circuit (128) of a datagram to be sent according to check data group of described transmission inventory,
-second portion check data group (136,138),
-the datagram that is used for receiving is assigned to the device (140,144) of a check data group of second portion check data group, and wherein this distribution is to carry out according to the sign of received datagram.
10. according to the described communication system of claim 9, wherein, described communication system is the communication system of an ethernet type or real-time ethernet type.
11. according to claim 9 or 10 described communication systems, wherein, described transmission inventory is handled in one-period.
12. according to claim 9,10 or 11 described communication systems, wherein, described transmission inventory has one or more control data groups (124) that are used for the processing sequence of definite first check data group.
13. according to the described communication system of claim 12, wherein, described control data group includes a condition jump address of pointing to a check data group in first's check data group.
14. according to the described communication system of claim 13, wherein, also comprise one-period counter (130), and described control data group constitutes like this, thereby finishes redirect to described jump address in each n cycle.
15. according to the described communication system of claim 14, wherein, described control data group constitutes like this, make described n the cycle can by to this in week issue the binary system bit position carry out mark and select.
16. according to each described communication system in the claim 9 to 15, wherein, check data group in the described second portion check data group is stored with packet mode, and finish visit to a check data group by an index (140), wherein, the grouping of described check data group is determined according to the sign of received data telegram.
17. subscriber equipment (100 by communication system (102), 104,106,108) the transmit and receive data method of telegram, wherein, datagram has valid data and a sign, is that carry out on the basis for the control of the telegram that transmitted and receive data by described subscriber equipment with the check data group, and the check data group has the address of valid data and attach troops to a unit in the sign of the datagram of this check data group, and described method has the following step:
-according to a check data group in first's check data group of a transmission inventory (120), produce a datagram to be sent,
-with the described basis that is designated the datagram that receives is distributed to the check data group of (136,138) in the second portion check data group.
18. in accordance with the method for claim 17, wherein, described transmission inventory is handled in one-period inside.
19. according to claim 17 or 18 described methods, wherein, the processing sequence of the check data group in the described first check data group is determined by one or more control data groups (124) of described transmission inventory.
20. according to claim 17,18 or 19 described methods, wherein, when a condition of described control data group was met, then a check data group in first's check data group was carried out redirect with good conditionsi.
21. in accordance with the method for claim 20, wherein, the satisfied of described this condition serves as that the basis is verified with one-period counter (130).
22. according to each described method in the claim 17 to 21, wherein, for visiting a check data group of described second portion check data group, at first call an index (140), so that determine the grouping under this check data group, wherein, described index is to set up according to the sign of datagram.
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| DE10150672.4 | 2001-10-17 | ||
| DE10150672 | 2001-10-17 | ||
| DE10234148A DE10234148A1 (en) | 2001-10-17 | 2002-07-26 | Participant for a high-performance communication system |
| DE10234148.6 | 2002-07-26 |
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| CN1565108A true CN1565108A (en) | 2005-01-12 |
| CN100450061C CN100450061C (en) | 2009-01-07 |
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| CNB028196341A Expired - Fee Related CN100450061C (en) | 2001-10-17 | 2002-10-04 | Subscriber device for a high-performance communication system |
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| US (1) | US7539215B2 (en) |
| EP (1) | EP1436950B1 (en) |
| CN (1) | CN100450061C (en) |
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| CA (1) | CA2463778A1 (en) |
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| WO (1) | WO2003036879A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981988A (en) * | 2011-05-11 | 2013-03-20 | 佳能株式会社 | Data transfer apparatus and data transfer method |
| CN105323131A (en) * | 2014-06-27 | 2016-02-10 | 倍福自动化有限公司 | Network, head subscriber and data transmission method |
| WO2023185969A1 (en) * | 2022-03-30 | 2023-10-05 | 三峡智控科技有限公司 | Real-time data compression and transmission method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100450061C (en) | 2001-10-17 | 2009-01-07 | 西门子公司 | Subscriber device for a high-performance communication system |
| DE502004006409D1 (en) * | 2004-05-10 | 2008-04-17 | Siemens Ag | Method for the single-channel transmission of redundant data |
| KR101412982B1 (en) * | 2007-06-28 | 2014-06-30 | 주식회사 썬스타 | Method and apparatus of universal application connecting module with additional function for sewing machine |
| US8478290B2 (en) * | 2009-09-21 | 2013-07-02 | Aeroscout, Ltd. | Method to reduce database load in real time location systems |
| US10678216B2 (en) * | 2017-02-28 | 2020-06-09 | Sap Se | Manufacturing process data collection and analytics |
| KR20210087181A (en) * | 2020-01-02 | 2021-07-12 | 삼성전자주식회사 | An electronic device detecting a location and a method thereof |
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| IT1202598B (en) * | 1987-02-27 | 1989-02-09 | Etefin Spa | AUTOMATED CONTROL AND MANAGEMENT SYSTEMS OF DEVICES, EQUIPMENT AND PERIPHERAL UNITS FOR THE SWITCHING AND PROCESSING OF SIGNALS IN GENERAL, IN PARTICULAR OF PHONICS AND / OR OF DATA AND / OR IMAGES |
| CN1052595A (en) * | 1989-12-22 | 1991-07-03 | 杨琳 | The development and use of edible fungi leftovers |
| US5796735A (en) * | 1995-08-28 | 1998-08-18 | Integrated Device Technology, Inc. | System and method for transmission rate control in a segmentation and reassembly (SAR) circuit under ATM protocol |
| US6233637B1 (en) * | 1996-03-07 | 2001-05-15 | Sony Corporation | Isochronous data pipe for managing and manipulating a high-speed stream of isochronous data flowing between an application and a bus structure |
| SE508889C2 (en) * | 1996-03-25 | 1998-11-16 | Net Insight Ab | Method and apparatus for data transmission with parallel bit streams |
| US6167471A (en) * | 1998-10-14 | 2000-12-26 | Sony Corporation | Method of and apparatus for dispatching a processing element to a program location based on channel number of received data |
| US6850513B1 (en) * | 1999-12-30 | 2005-02-01 | Intel Corporation | Table-based packet classification |
| US7069305B2 (en) * | 2000-06-08 | 2006-06-27 | Hitachi, Ltd. | Computer system and a data transfer method thereof using remote direct memory access |
| DE10058524A1 (en) * | 2000-11-24 | 2002-06-13 | Siemens Ag | System and method for the parallel transmission of real-time-critical and non-real-time-critical data via switchable data networks, in particular Ethernet |
| CN100450061C (en) | 2001-10-17 | 2009-01-07 | 西门子公司 | Subscriber device for a high-performance communication system |
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2002
- 2002-10-04 CN CNB028196341A patent/CN100450061C/en not_active Expired - Fee Related
- 2002-10-04 EP EP02776779A patent/EP1436950B1/en not_active Expired - Lifetime
- 2002-10-04 WO PCT/DE2002/003751 patent/WO2003036879A1/en active IP Right Grant
- 2002-10-04 CA CA002463778A patent/CA2463778A1/en not_active Abandoned
- 2002-10-04 AT AT02776779T patent/ATE393518T1/en not_active IP Right Cessation
- 2002-10-04 DE DE50212162T patent/DE50212162D1/en not_active Expired - Lifetime
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- 2004-04-16 US US10/825,669 patent/US7539215B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981988A (en) * | 2011-05-11 | 2013-03-20 | 佳能株式会社 | Data transfer apparatus and data transfer method |
| CN102981988B (en) * | 2011-05-11 | 2015-09-09 | 佳能株式会社 | Data transfer equipment and data transferring method |
| CN105323131A (en) * | 2014-06-27 | 2016-02-10 | 倍福自动化有限公司 | Network, head subscriber and data transmission method |
| US9544258B2 (en) | 2014-06-27 | 2017-01-10 | Beckhoff Automation Gmbh | Network, head subscriber and data transmission method |
| WO2023185969A1 (en) * | 2022-03-30 | 2023-10-05 | 三峡智控科技有限公司 | Real-time data compression and transmission method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100450061C (en) | 2009-01-07 |
| CA2463778A1 (en) | 2003-05-01 |
| ATE393518T1 (en) | 2008-05-15 |
| US20040198325A1 (en) | 2004-10-07 |
| EP1436950A1 (en) | 2004-07-14 |
| US7539215B2 (en) | 2009-05-26 |
| EP1436950B1 (en) | 2008-04-23 |
| DE50212162D1 (en) | 2008-06-05 |
| WO2003036879A1 (en) | 2003-05-01 |
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